Definitions for "NPSI"
Keywords:  ncp, sna, pcne, fep, vse
X.25 NCP Packet Switching Interface. NCP process providing FEP/mainframe support of X.25 networks, by converting SNA flows into X.25 frames, thereby allowing non-SNA applications and devices to interact transparently with SNA hosts. Works with PCNE DATE, GATE and other variants. Operates in 3720 and 3745 communication controllers, and provides support for SNA and non-SNA devices in the z/OS, z/VM and VSE/ESA environments. NPSI performance has been frequently criticized by a less than enthusiastic user base.
Network Packet Switching Interface. IBM's Network Control Program (NCP) software allowing SNA hosts to attach to X.25 networks, supporting virtual circuits that appear to SNA hosts as point-to-point (SDLC) links.